Lubricating oil effects on the transient performance of a turbocharged diesel engine

Giakoumis, EG

dc.contributor.author	Giakoumis, EG	en
dc.date.accessioned	2014-03-01T01:33:43Z
dc.date.available	2014-03-01T01:33:43Z
dc.date.issued	2010	en
dc.identifier.issn	0360-5442	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20553
dc.subject	Turbocharged diesel engine	en
dc.subject	Transient operation	en
dc.subject	Oil	en
dc.subject	Viscosity	en
dc.subject	Temperature	en
dc.subject	Friction	en
dc.subject.classification	Thermodynamics	en
dc.subject.classification	Energy & Fuels	en
dc.subject.other	TEMPERATURE	en
dc.title	Lubricating oil effects on the transient performance of a turbocharged diesel engine	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.energy.2009.08.009	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.energy.2009.08.009	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The modeling of transient turbocharged diesel engine operation appeared in the early seventies and continues to be in the focal point of research, due to the importance of transient response in the everyday operating conditions of engines. The majority of research has focused so far on issues concerning thermodynamic modeling, as these directly affect performance and pollutants' emissions. On the other hand, issues concerning the dynamics of transient operation are usually over-simplified, possibly for the sake of speeding up program execution time. In the present work, an experimentally validated transient diesel engine simulation code is used to study and evaluate the importance of the lubricating oil properties (oil-type, viscosity, temperature) on the transient response of a turbocharged diesel engine. It is revealed how the lubricating oil affects mechanical friction and hence, the speed response as well as the other interesting parameters, e.g. fuel pump rack position or turbocharger operating point for load-change schedules typical in the European Transient Cycles for heavy-duty engines. Particularly under low ambient conditions, the high oil viscosity is responsible for a significant increase in the respective frictional losses worsening the engine transient response. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	ENERGY	en
dc.identifier.doi	10.1016/j.energy.2009.08.009	en
dc.identifier.isi	ISI:000275166900043	en
dc.identifier.volume	35	en
dc.identifier.issue	2	en
dc.identifier.spage	864	en
dc.identifier.epage	873	en